Variables
|
All casesb
|
AC
|
SCC
|
---|
|
RR† (95% CI)
|
RR† (95% CI)
|
RR† (95% CI)
|
---|
SO2 concentration (ppb)
|
≤ 3.74
|
1.00
|
1.00
|
1.00
|
3.74-5.52
|
1.09 (0.97-1.22)
|
1.20 (1.04-1.37)
|
1.39 (0.96-2.01)
|
5.52-7.75
|
1.10 (0.97-1.24)
|
1.22 (1.04-1.43)
|
1.58 (1.06-2.37)
|
> 7.75
|
1.30 (1.13-1.50)
|
1.27 (1.06-1.52)
|
1.80 (1.15-2.84)
|
Test for trend
|
P = 0.0003*
|
P = 0.0272*
|
P = 0.0145*
|
CO concentration (ppm)
|
≤ 0.55
|
1.00
|
1.00
|
1.00
|
0.55-0.72
|
0.97 (0.84-1.12)
|
0.99 (0.83-1.19)
|
0.82 (0.53-1.27)
|
0.72-0.88
|
1.14 (0.98-1.32)
|
1.09 (0.90-1.31)
|
1.07 (0.69-1.67)
|
> 0.88
|
1.20 (0.99-1.45)
|
1.18 (0.93-1.50)
|
0.99 (0.56-1.75)
|
Test for trend
|
P = 0.0055*
|
P = 0.0759
|
P = 0.5833
|
NO2 concentration (ppb)
|
≤ 17.09
|
1.00
|
1.00
|
1.00
|
17.09-22.18
|
0.93 (0.82-1.05)
|
1.06 (0.90-1.25)
|
0.95 (0.64-1.41)
|
22.18-27.63
|
0.87 (0.75-1.01)
|
1.08 (0.89-1.30)
|
1.08 (0.69-1.70)
|
> 27.63
|
0.80 (0.66-1.08)
|
1.15 (0.89-1.47)
|
1.04 (0.57-1.91)
|
Test for trend
|
P = 0.0304*
|
P = 0.3175
|
P = 0.7259
|
NO concentration (ppb)
|
≤ 5.29
|
1.00
|
1.00
|
1.00
|
5.29-8.18
|
1.11 (0.97-1.26)
|
1.05 (0.89-1.24)
|
1.05 (0.71-1.57)
|
8.18-12.37
|
1.02 (0.88-1.17)
|
1.13 (0.94-1.36)
|
1.04 (0.67-1.62)
|
> 12.37
|
1.27 (1.05-1.53)
|
1.31 (1.03-1.66)
|
1.12 (0.63-1.99)
|
Test for trend
|
P = 0.0615
|
P = 0.0174*
|
P = 0.7464
|
O3 concentration (ppb)
|
≤ 19.18
|
1.00
|
1.00
|
1.00
|
19.18-22.01
|
0.82 (0.75-0.91)
|
0.84 (0.75-0.95)
|
0.79 (0.59-1.06)
|
22.01-25.33
|
0.86 (0.77-0.97)
|
0.85 (0.73-0.98)
|
0.82 (0.57-1.16)
|
> 25.33
|
0.89 (0.78-1.02)
|
0.88 (0.74-1.04)
|
0.75 (0.50-1.14)
|
Test for trend
|
P = 0.1169
|
P = 0.1188
|
P = 0.2049
|
PM10 concentration (μg/m3)
|
≤ 50.04
|
1.00
|
1.00
|
1.00
|
50.04-61.23
|
1.08 (0.98-1.19)
|
1.03 (0.92-1.15)
|
1.12 (0.82-1.52)
|
61.23-76.30
|
1.17 (1.06-1.30)
|
1.07 (0.95-1.20)
|
1.34 (0.98-1.83)
|
> 76.30
|
0.99 (0.88-1.12)
|
0.85 (0.73-1.01)
|
1.22 (0.84-1.78)
|
Test for trend
|
P = 0.3893
|
P = 0.1700
|
P = 0.1413
|
-
a AC, adenocarcinoma; CI, confidence interval; CO, carbon monoxide; NO, nitric oxide; NO2, nitrogen dioxide; O3, ozone; PM10, particulate matter < 10 μm; RR, relative risk; SCC, squamous cell carcinoma; SO2, sulfur dioxide.
-
bAll cases included AC, SCC, large cell carcinoma, and small cell carcinoma.
-
†Adjusted for age and other air pollutants. *P < 0.05.